Homeopathic teaching is based on the principle of similarity.
This principle follows the adage similia similibus curentur (“like is cured by likeness”). It states that a disease can be cured by means of a dilute solution of a substance that causes the same symptoms as the disease. An example is the nosode (Greek nosos, disease), ge

makes of the pathogen or diseased tissue. In addition, homeopathic teaching assumes that during potentiation, in which the raw material or tincture is extremely diluted and shaken in a number of steps, the effect of the raw material transfers to the solvent.

Homeopathic remedies are prepared on the basis of a wide variety of raw materials and materials, including substances of mineral, vegetable or animal origin, which when administered in their pure form are considered to give precisely those symptoms that resemble those of the disease to be combated. In the industry, for cost reasons, potentiation is done by mechanically spraying the agent into the solvent. The extremely diluted end product is believed to eliminate disease symptoms without side effects. The book Materia Medica Pura — which Hahnemann started in 1811 and which has since been expanded — forms the basis of the medicinal knowledge of homeopathy. Both diluted and undiluted agents are included herein.